Vehicle Safety Data

Recall 94V032000 — VEHICLE SPEED CONTROL Defect in 1987-1992 MACK CH

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RECALL This recall affects up to 39,777 vehicles.

Recall Summary

NHTSA Campaign 94V032000
Manufacturer MACK TRUCKS, INCORPORATED
Vehicles Affected 39,777
Component VEHICLE SPEED CONTROL
Date Notified
Affected Vehicles
1987 MACK DM, 1987 MACK DMM, 1987 MACK R, 1987 MACK MHR, 1987 MACK MH, 1987 MACK MR, 1987 MACK FDM, 1987 MACK RM, 1987 MACK RB, 1987 MACK MC, 1987 MACK CL, 1987 MACK U, 1987 MACK CF, 1987 MACK CH, 1987 MACK RW, 1987 MACK RD, 1987 MACK CHR, 1988 MACK CH, 1988 MACK DMM, 1988 MACK DM, 1988 MACK MHR, 1988 MACK MR, 1988 MACK U, 1988 MACK CF, 1988 MACK FDM, 1988 MACK MH, 1988 MACK MC, 1988 MACK CHR, 1988 MACK RW, 1988 MACK RM, 1988 MACK RD, 1988 MACK RB, 1988 MACK R, 1988 MACK CL, 1989 MACK DMM, 1989 MACK MHR, 1989 MACK MH, 1989 MACK U, 1989 MACK MR, 1989 MACK CF, 1989 MACK MC, 1989 MACK RW, 1989 MACK RM, 1989 MACK R, 1989 MACK DM, 1989 MACK FDM, 1989 MACK CH, 1989 MACK CL, 1989 MACK RD, 1989 MACK RB, 1989 MACK CHR, 1990 MACK CL, 1990 MACK DM, 1990 MACK DMM, 1990 MACK U, 1990 MACK RB, 1990 MACK MR, 1990 MACK MHR, 1990 MACK MH, 1990 MACK RW, 1990 MACK RD, 1990 MACK R, 1990 MACK MC, 1990 MACK CH, 1990 MACK FDM, 1990 MACK CF, 1990 MACK RM, 1990 MACK CHR, 1991 MACK CL, 1991 MACK DM, 1991 MACK DMM, 1991 MACK U, 1991 MACK MHR, 1991 MACK MR, 1991 MACK MH, 1991 MACK FDM, 1991 MACK MC, 1991 MACK RW, 1991 MACK RM, 1991 MACK RB, 1991 MACK R, 1991 MACK CF, 1991 MACK RD, 1991 MACK CHR, 1991 MACK CH, 1992 MACK DM, 1992 MACK U, 1992 MACK MR, 1992 MACK MHR, 1992 MACK MH, 1992 MACK RM, 1992 MACK CF, 1992 MACK FDM, 1992 MACK MC, 1992 MACK CH, 1992 MACK CHR, 1992 MACK CL, 1992 MACK RW, 1992 MACK RD, 1992 MACK RB, 1992 MACK R, 1992 MACK DMM

Defect Description

FUEL INJECTION SYSTEM RECONFIGURATION TO COMPLY WITH ENGINE EMISSION STANDARDS CAUSE HIGHER ENGINE VIBRATION LEVELS WHICH LEAD TO EARLY WEAR AND COMPLETE FAILURE OF THE SECONDARY THROTTLE RETURN MECHANISM.

Safety Consequence

IN THE EVENT THE PRIMARY THROTTLE RETURN FAILS, FAILURE OF THE SECONDARY THROTTLE RETURN SYSTEM WOULD NOT PROVIDE PROTECTION AGAINST LOSS OF THROTTLE CONTROL.

Remedy

A NEW PRODUCTION SECONDARY THROTTLE RETURN SYSTEM CONFIGURATION WILL BE INSTALLED.

Related Recalls for MACK

Campaign Vehicle Component Date Affected
25V666000 2024 MACK MD (ELECTRIC) SEAT BELTS:FRONT:ANCHORAGE 15,841
25V801000 2025 MACK PIONEER PR (4) EQUIPMENT:MECHANICAL 46
25V622000 2025 MACK PIONEER PR (4) EXTERIOR LIGHTING:LIGHTING CONTROL MODULE 156
25V495000 2026 MACK GRANITE GR (4) SERVICE BRAKES, AIR:DRUM 36
25V521000 2025 MACK ANTHEM (AN) STEERING 32
25V427000 2024 MACK MD (ELECTRIC) ELECTRICAL SYSTEM:SOFTWARE 148
25V352000 2026 MACK GRANITE GR (4) SERVICE BRAKES, AIR:DRUM 5
25V382000 2025 MACK GRANITE (GR) ELECTRICAL SYSTEM:12V/24V/48V BATTERY 8
25V333000 2026 MACK MD SEAT BELTS 42
25V030000 2010 MACK MRU SERVICE BRAKES, AIR:ANTILOCK 142
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